ICD-10 Code L73.8 – Other specified follicular disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L73.8 – Other specified follicular disorders
What it is
L73.8 is used for follicular disorders that do not fit a more specific ICD-10 diagnosis. It identifies an abnormality of hair follicles when the chart supports a particular follicular condition but not a named code.
Clinical signs
Clinical features vary; refer to documentation. You may see follicular inflammation, plugging, papules, pustules, or localized hair-bearing skin changes that are not classified elsewhere.
When to use this code
Use L73.8 when the provider documents a specified follicular disorder and no more specific code applies. It is appropriate when the record describes a follicular condition but does not support acne, folliculitis, or another defined diagnosis. Check documentation if the term is vague.
Do not use for
Do not use this code for clearly identified folliculitis, acne, or other specific skin disorders with their own codes. Avoid it when the documentation supports a more precise diagnosis.
Coding tip
Query for the exact follicular diagnosis if the note is nonspecific, because L73.8 should be a documented fallback, not the first assumption.